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| author | Johan Hovold <johan@kernel.org> | 2017-07-09 13:08:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-30 08:35:52 +0000 |
| commit | b880bebed0d520385676be5e028a067b1914c062 (patch) | |
| tree | a6bae425887c7a2d8d99c25f5840384c8edee9ca | |
| parent | d7c44dae8d8ca328a67db884194b1fa592f723db (diff) | |
| download | linux-stable-b880bebed0d520385676be5e028a067b1914c062.tar.gz linux-stable-b880bebed0d520385676be5e028a067b1914c062.tar.bz2 linux-stable-b880bebed0d520385676be5e028a067b1914c062.zip | |
NFC: fix device-allocation error return
commit c45e3e4c5b134b081e8af362109905427967eb19 upstream.
A recent change fixing NFC device allocation itself introduced an
error-handling bug by returning an error pointer in case device-id
allocation failed. This is clearly broken as the callers still expected
NULL to be returned on errors as detected by Dan's static checker.
Fix this up by returning NULL in the event that we've run out of memory
when allocating a new device id.
Note that the offending commit is marked for stable (3.8) so this fix
needs to be backported along with it.
Fixes: 20777bc57c34 ("NFC: fix broken device allocation")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/nfc/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/nfc/core.c b/net/nfc/core.c index 2ff3c924b64f..a8e8756878de 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -1074,7 +1074,7 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, err_free_dev: kfree(dev); - return ERR_PTR(rc); + return NULL; } EXPORT_SYMBOL(nfc_allocate_device); |